code: def setup(app):
      app.connect("builder-inited", main)
  
file_path: mpld3/doc/sphinxext/notebook_converter.py
imports: import sys
  import os
  import glob
  import shutil
  import jinja2
  import nbformat
  from nbconvert.exporters import HTMLExporter
label_desc: Use image node_id 3 for calling a global function with example usage: setup(app) without return types